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Installation site featuring a Lamella inclined plate clarifier

Lamella Clarifier

The Lamella® is the original inclined plate clarifier. Introduced by Parkson in 1971, it has been the industry standard for this technology.

How It Works

The Lamella clarifier works when a solid/liquid stream that has been flocculated, enters a tank, and flows upward between a pack of inclined plates. The solids fall to the plate surface, where they slide by gravity down to a sludge collection hopper. The clarified effluent flows through orifice holes and exits the top of the settler.

The innovative Lamella EcoFlow®, which was unveiled in 2012 and is patented, eliminates the area of interference at the bottom of the plates and allows for full utilization of the plate settling area. This translates to an increased capacity of 25% in the same footprint and allows for easy retrofitting to upgrade older installations to the EcoFlow® design!

The Lamella has Been Utilized in Countless Applications Including:

  • Potable water clarification
  • Industrial process water
  • Sand filter backwash
  • Metal finishing
  • Mining
  • Groundwater
  • River pre-sedimentation

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Features & Benefits


10 times the equivalent settling area
of traditional clarifiers saves space and allows for efficient use of land

Improved function

Patent-approved Lamella EcoFlow® design
allows up to a 25% increase in capacity over the standard design

Reduced Maintenance

Self-cleaning plates and no moving parts
require minimal maintenance and operator attention


Completely submerged plates
maximize use of available plate area

Improved function

Plates installed at 55⁰
optimize max solids settling efficiency

Water drop

Standard corrosion-resistant FRP plates
increase life expectancy 

Provide various options

Plates available in several FRP grades
can be used for high/low pH, high temperatures, and other extreme conditions

Provide various options

Plates available in various stainless steel grades
allows for custom applications to be tackled

Improved function

Rapid Mixing and Flocculation
packages allow chemical use for improved overflow quality 

Cost Savings

Low power requirements
for all drives and motors reduce operating cost

Provide various options

Optional FRP or rubber lined steel tank construction
provides additional protection for highly corrosive applications 

Water drop with leaves

Optional NSF-61 materials of construction available
for potable water applications 

Improved function

Optional rake mechanisms
improve thickening and underflow quality